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Errata: on the role of the continuum hypothesis in forcing principles for subcomplete forcing

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Abstract

In this note, I will list instances where in the literature on subcomplete forcing and its forcing principles (mostly in articles of my own), the assumption of the continuum hypothesis, or that we are working above the continuum, was omitted. I state the correct statements and provide or point to correct proofs. There are also some new results, most of which revolve around showing the necessity of the extra assumption.

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References

  1. Claverie, B., Schindler, R.: Increasing \(u_2\) by a stationary set preserving forcing. J. Symb. Log. 74(1), 187–200 (2009)

    Article  Google Scholar 

  2. Cox, S.D., Fuchs, G.: The diagonal strong reflection principle and its fragments. J. Symb. Log. 88(3), 1281–1309 (2023)

    Article  MathSciNet  Google Scholar 

  3. Fuchs, G.: Closure properties of parametric subcompleteness. Arch. Math. Log. 57(7–8), 829–852 (2018)

    Article  MathSciNet  Google Scholar 

  4. Fuchs, G.: Hierarchies of forcing axioms, the continuum hypothesis and square principles. J. Symb. Log. 83(1), 256–282 (2018)

    Article  MathSciNet  Google Scholar 

  5. Fuchs, G.: Diagonal reflections on squares. Arch. Math. Log. 58(1), 1–26 (2019)

    Article  MathSciNet  Google Scholar 

  6. Fuchs, G.: Aronszajn tree preservation and bounded forcing axioms. J. Symb. Log. 86(1), 293–315 (2021)

    Article  MathSciNet  Google Scholar 

  7. Fuchs, G.: Canonical fragments of the strong reflection principle. J. Math. Log. 21(03), 2150023 (2021)

    Article  MathSciNet  Google Scholar 

  8. Fuchs, G., Lambie-Hanson, C.: Separating diagonal stationary reflection principles. J. Symb. Log. 86(1), 262–292 (2021)

    Article  MathSciNet  Google Scholar 

  9. Fuchs, G., Switzer, C.B.: Iteration theorems for subversions of forcing classes. Under review, pp. 1–45 (2023). arXiv:2006.13376v2 [math.LO]

  10. Jensen, R.B.: Forcing axioms compatible with CH. Handwritten notes (2009). Available at https://www.mathematik.hu-berlin.de/~raesch/org/jensen.html,

  11. Jensen, R.B.: Subproper and subcomplete forcing. Handwritten notes (2009). Available at https://www.mathematik.hu-berlin.de/~raesch/org/jensen.html

  12. Jensen, R.B.: Subcomplete forcing and \({\cal{L} }\)-forcing. In: Chong, C., Feng, Q., Slaman, T.A., Woodin, W.H., Yang, Y. (eds.) E-recursion, Forcing and \(C^*\)-Algebras. Lecture Notes Series, Institute for Mathematical Sciences, National University of Singapore, vol. 27, pp. 83–182. World Scientific, Singapore (2014)

    Google Scholar 

  13. Larson, P.: Separating stationary reflection principles. J. Symb. Log. 65(1), 247–258 (2000)

    Article  MathSciNet  Google Scholar 

  14. Sakai, H., Switzer, C.B.: Separating subversion forcing principles. arXiv:2308.16276 [math.LO] (2023)

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Acknowledgements

I would like to thank the people who were involved in the discovery and analysis of the omitted assumption: Sean Cox, Hiroshi Sakai and Corey Switzer.

Funding

This work was supported by the Simons Foundation Under Grant Number 580600.

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G.F. wrote the manuscript.

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Correspondence to Gunter Fuchs.

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Fuchs, G. Errata: on the role of the continuum hypothesis in forcing principles for subcomplete forcing. Arch. Math. Logic 63, 509–521 (2024). https://doi.org/10.1007/s00153-024-00905-w

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  • DOI: https://doi.org/10.1007/s00153-024-00905-w

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